These items are not for sale. I converted these models to be usable in GTAV which required some resizing and texture applications. 
Other than that, they are un-edited. I did not create them.
They are free and royalty-free creations from talented artists at cgtrader.com (credits below).

*CGTrader Artists* I am including the name of the model as well as the direct link so you can easier find the artist!

lyrog - Low Poly Spider Model (https://www.cgtrader.com/free-3d-models/animals/insect/low-poly-spider-model)
Suraia - Smokey Halloween Cauldron (https://www.cgtrader.com/free-3d-models/interior/kitchen/smokey-halloween-cauldron)
EmreAkcann - Classic Medieval Coffin (https://www.cgtrader.com/free-3d-models/various/various-models/classic-medieval-coffin)
estchho - Low poly gravestones x20 (https://www.cgtrader.com/free-3d-models/exterior/historic/low-poly-gravestones)
Thepingerman - Ghost decoration furniture model (https://www.cgtrader.com/free-3d-models/furniture/other/ghost-decoration-furniture-model)
thelemita777 - Candle (https://www.cgtrader.com/free-3d-models/furniture/lamp/candle-81c14607-2b2d-4655-bace-daffb6febe92)
clayguy - Skull 1 (https://www.cgtrader.com/free-3d-print-models/art/sculptures/skull-1-d1083e47-1b73-45ba-9bfc-25ee16d45a69)
clayguy - Angel of Death (https://www.cgtrader.com/free-3d-print-models/art/sculptures/angel-of-death-a87c4dd1bc9f63ee10cda04756220eef)
Timothy Hardy - 3 Black Hooded Capes [used 1 and 2 of 3] (https://www.cgtrader.com/free-3d-models/character/clothing/3-black-hooded-capes)
zuzia1992 - Set of 4 Tombstones (https://www.cgtrader.com/free-3d-models/architectural/other/set-of-4-tombstones)
John MacNeill - Jack-o-lantern (https://www.cgtrader.com/free-3d-models/character/other/jack-o-lantern)
johnyt - Cross Stone (https://www.cgtrader.com/free-3d-models/architectural/decoration/cross-stone)
slavamal2003 - Death (https://www.cgtrader.com/free-3d-models/various/various-models/death-281c12d9-1a76-482a-a5e7-1b982b3c09ca)
imago69 - Stylized Coffin (https://www.cgtrader.com/free-3d-models/interior/other/stylized-coffin-0d4c1b3e-9a6d-44ad-b72e-e142e46a5f70)
tim-1982 - Chandelier (https://www.cgtrader.com/free-3d-models/architectural/decoration/chandeleir)
saschauncia - Simple Realistic Pumpkin (https://www.cgtrader.com/free-3d-models/food/fruit/simple-realistic-pumpkin)
marcelo1st - Halloween Cat Reaper (https://www.cgtrader.com/free-3d-print-models/miniatures/figurines/halloween-cat-reaper)

These items are not for sale. 
Please review the licensing for each item via cgtrader.com and respect the wishes of the creators.